Re: [PATCH V4 06/16] xfs: Promote xfs_extnum_t and xfs_aextnum_t to 64 and 32-bits respectively

[Chandan Babu R <chandan.babu@oracle.com>]

On 14 Dec 2021 at 20:45, kernel test robot wrote:
> Hi Chandan,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on xfs-linux/for-next]
> [also build test ERROR on v5.16-rc5]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch]
>
> url:    https://github.com/0day-ci/linux/commits/Chandan-Babu-R/xfs-Extend-per-inode-extent-counters/20211214-164920
> base:   https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git for-next
> config: microblaze-randconfig-r016-20211214 (https://download.01.org/0day-ci/archive/20211214/202112142335.O3Nu0vQI-lkp@intel.com/config)
> compiler: microblaze-linux-gcc (GCC) 11.2.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://github.com/0day-ci/linux/commit/db28da144803c4262c0d8622d736a7d20952ef6b
>         git remote add linux-review https://github.com/0day-ci/linux
>         git fetch --no-tags linux-review Chandan-Babu-R/xfs-Extend-per-inode-extent-counters/20211214-164920
>         git checkout db28da144803c4262c0d8622d736a7d20952ef6b
>         # save the config file to linux build tree
>         mkdir build_dir
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=microblaze SHELL=/bin/bash
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>):
>
>    microblaze-linux-ld: fs/xfs/libxfs/xfs_bmap.o: in function `xfs_bmap_compute_maxlevels':
>>> (.text+0x10cc0): undefined reference to `__udivdi3'
>

The fix for the compilation error on 32-bit systems involved invoking do_div()
instead of using the regular division operator. I will include the fix in the
next version of the patchset.

-- 
chandan